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3 years ago

What is the discriminant of the quadratic equation?

Mathematics

2 answers:

Nata [24]3 years ago

7 0

Answer:

The discriminant is the part of the quadratic formula underneath the square root symbol: b²-4ac. The discriminant tells us whether there are two solutions, one solution, or no solutions.

Step-by-step explanation:

Kipish [7]3 years ago

4 0

Answer:

The discriminant is the part under the square root in the quadratic formula, b²-4ac. If it is more than 0, the equation has two real solutions. If it's less than 0, there are no solutions. If it's equal to 0, there is one solution.

Step-by-step explanation:

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Masteriza [31]

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3 years ago

The sum of reciprocals of rehman’s ages 3 years ago and 5 years from now is 1/3. Find his present age

Afina-wow [57]

Answer:

His age is 7 years.

Step-by-step explanation:

Let Rehman's present age be x years.

1 / (x - 3) + 1 /(x + 5) = 1/3

Multiply through by the LCD 3(x - 3)(x + 5):

3(x + 5) + 3(x - 3) = (x + 5)(x - 3)

3x + 15 + 3x - 9 = x^2 + 2x - 15

x^2 + 2x - 6x - 30 + 9 = 0

x^2 - 4x - 21 = 0

(x - 7)(x + 3) = 0

x = 7 (answer).

6 0

2 years ago

Tickets to a play cost $14 each by mail, plus a $2 processing fee for each order of one or more tickets. Write a rule to describ

77julia77 [94]

$14t +2t= total cost or 16t= total cost

3 0

3 years ago

A bag contains 7 green marbles and 4 white marbles you select a marble at random what are the odds in favor of picking a green m

dimaraw [331]

7/11 = 0.64 because 7+4 = 11 and then divid 7 by the total number

6 0

3 years ago

Where is the blue point on the number line -5 0 5

noname [10]

The blue point on the number line is 5 units away from zero, which is: 5.

<h3>What is a Number Line?</h3>

A number line is an arrangement of numbers from point zero, on both sides of the starting point, which is zero.

In the number line given, the blue point is 5 units away from the starting point, zero.

Therefore, the blue point is 5 on the number line.

Learn more about the number line on:

brainly.com/question/24644930

#SPJ1

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1 year ago